Last week, Massimiliano Allegri's team overtook rivals Inter in the race to sign the 27-year-old, who is expected to command a salary in excess of £3m per season if he does complete a move to Italy.

Milan chief executive Adriano Galliani is considering a variety of bonuses and incentives that could balance a potential offer to De Jong.

A move for Real Madrid midfielder Lassana Diarra, in addition to interest in Kaka, has been abandoned, with the former Arsenal and Chelsea player set to join Fenerbahce for €5.5m [£4.4m] a season for three years.

Djamel Mesbah, Edoardo Pazzagli and Adria Carmona, meanwhile, could leave the Italian club as they look to trim their squad numbers.